Hi there! I am a living cell simulation...

...and you may call me P. Watch me: I am able to evolve and compute whatever you ask me to. My applications are in biology, biomedicine, population dynamics, ecosystems, economics, optimisation, computer graphics, linguistics, compuer science, cryptography... you name it.

Nice introduction but I still don't get it. Who are you?

I am the system. And what I do are computations. Among them some are defined to be successful, and successful computations yield results. Computations I make are defined successful if they stop. Others can go on, forever and ever... in continous struggle for merely one thing; one way to reach salvation - through halting.

Caught in an infinite loop. I think I know something about it. But how does it all work?

Well, just like in a living cell a membrane is a base of my existance. Within the membrane there are substances - objects - and believe me, I have my ways of transforming them to other substances or transporting to neighbouring membranes. There are rules for everything that is going on. And still I am quite unpredictable.

How so?

Let me just remark upon the behaviour of nondeterminism. There are certain rules, right? However the order of rule application is chosen at random. That can have a significant effect on the outcome. I may, for instance, dissolve. Ha ha! And then I won't be able to compute anything else. Then what you see is what you get. So may I ask you not to abuse a delta symbol around me whatsoever?

Do you mean δ...?

∅

Woops!

Cheers anyway.